Romans 1:31

faithless to their promises, without natural affection, without human pity.

2 Timothy 3:3

destitute of natural affection, unforgiving, slanderers. They will have no self-control, but will be brutal, opposed to goodness,

Matthew 15:16

"Are even you," He answered, "still without intellingence?

Romans 1:20-21

For, from the very creation of the world, His invisible perfections--namely His eternal power and divine nature--have been rendered intelligible and clearly visible by His works, so that these men are without excuse.

Romans 3:11

There is not one who is really wise, nor one who is a diligent seeker after God.

Treasury of Scripture Knowledge

Summary

Without understanding, covenantbreakers, without natural affection, implacable, unmerciful:

Without understanding

Covenant-breakers

Bible References

Without understanding

Romans 1:20
For, from the very creation of the world, His invisible perfections--namely His eternal power and divine nature--have been rendered intelligible and clearly visible by His works, so that these men are without excuse.
Romans 3:11
There is not one who is really wise, nor one who is a diligent seeker after God.
Matthew 15:16
"Are even you," He answered, "still without intellingence?

Covenant-breakers

2 Timothy 3:3
destitute of natural affection, unforgiving, slanderers. They will have no self-control, but will be brutal, opposed to goodness,